Q // tugas (#2)
(50+ point)
-
ada dilampiran*
-
matur nuhun _/\_
(50+ point)
-
ada dilampiran*
-
matur nuhun _/\_
SPLDV, metode substitusi
3x - 4y = 20 ...(1)
2x + y = 6
y = 6 - 2x ...(2)
- Substitusi pers. (2) ke pers. (1)
3x - 4y = 20
3x - 4(6 - 2x) = 20
3x - 24 + 8x = 20
11x - 24 = 20
11x = 20 + 24
11x = 44
x = 44 : 11
x = 4
- substitusi nilai x ke pers. (2)
y = 6 - 2x
y = 6 - 2(4)
y = 6 - 8
y = -2
HP = {4, -2}
Materi : SPLDV
3x - 4y = 20
2x + y = 6 [ y = - 2x + 6 ]
Nilai x [ Substitusi ( y → x ) ]
3x - 4y = 20
3x - 4( - 2x + 6 ) = 20
3x + 8x - 24 = 20
11x = 44
[ x = 4 ]
Nilai y [ Substitusi ( x → y ) ]
( x = 4 )
2x + y = 6
2(4) + y = 6
y = 6 - 8
[ y = -2 ]
Hasil / Result :
{ x = 4 dan y = -2 }
Semoga bisa membantu
[tex] \boxed{ \colorbox{lightblue}{ \sf{ \color{blue}{ Answer By\:BlueBraxGeometry}}}} [/tex]
